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Compaction of lithium-silicate ceramics using spark plasma sintering
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SYSNO ASEP 0474254 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Compaction of lithium-silicate ceramics using spark plasma sintering Author(s) Kubatík, Tomáš František (UFP-V)
Lukáč, František (UFP-V) ORCID
Mušálek, Radek (UFP-V) RID, ORCID
Brožek, Vlastimil (UFP-V) RID
Stehlíková, K. (CZ)
Chráska, Tomáš (UFP-V) RID, ORCIDSource Title Ceramics - Silikáty. - : University of Chemistry and Technology Prague - ISSN 0862-5468
Roč. 61, č. 1 (2017), s. 40-44Number of pages 5 s. Publication form Print - P Language eng - English Country CZ - Czech Republic Keywords Li2Si2O5 ; Li2SiO3 ; Spark plasma sintering (SPS) ; Quantitative Rietveld refinement ; X-ray diffraction (XRD) Subject RIV JG - Metallurgy OECD category Materials engineering R&D Projects GB14-36566G GA ČR - Czech Science Foundation (CSF) Institutional support UFP-V - RVO:61389021 UT WOS 000397378500007 EID SCOPUS 85015946265 DOI 10.13168/cs.2016.0058 Annotation This paper deals with the compaction of ceramics based on lithium -silicate by spark plasma sintering (SPS). The initial powder was prepared by calcination in a resistance furnace at a temperature of 1300 degrees C with the ratio of Li/Si = I. Compacting by SPS was carried out at temperatures of 800 - 1000 degrees C with a maximum pressure of 80 ILIPa. Samples with open porosity of less than 1 % were prepared at the temperature of 1000 degrees C. According to the quantitative Rietveld refinement of x-ray diffraction data, the dominant phases in all samples were Li2SiO5 and Li2SiO3, together representing over 80 wt. % of the sintered material. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2018
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